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I need to access the email message in RFC5322 format from my Outlook Web Add-in and send it to my back-end.

The add-in needs to support on-premise Exchange servers as well. I tried sending a GetItem request with IncludeMimeContent set to true using the makeEwsRequestAsync API.

The response I get is what I need. But this page mentions IncludeMimeContent is expensive operation.

I am not expecting continuous and many concurrent GetItem requests to the Exchange server. There could be an occasional spike in no. of requests.

Can I go ahead with this approach? Would it have adverse impact on the exchange server?

Any other alternative approach that I can look into?

Marc LaFleur
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Dhana
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1 Answers1

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One issue I would be concerned with would be the size limit eg there is a 1MB limit you should run into if a message has large attachments if you request the MIME content which would include the attachments. You might wan't to look at doing something like 1 MB response size limit with outlook web add-ins

Glen Scales
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